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Pilot valve and four-way valve

A pilot valve and conduit technology, applied in multi-port valves, valve details, valve devices, etc., can solve the problems of unreliable filter connection and high manufacturing cost, and achieve the effects of small size, reduced production cost, and improved connection strength.

Active Publication Date: 2014-10-01
ANHUI HUAHAI METAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a pilot valve and a four-way valve, which are used to solve the technical defects of unreliable filter connection and high manufacturing cost of the pilot valve in the prior art

Method used

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  • Pilot valve and four-way valve

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Embodiment Construction

[0022] figure 2 Schematic diagram of the structure of the pilot valve provided for the embodiment of the present invention; image 3 figure 2 A partial schematic diagram of the pilot valve in .

[0023] Such as figure 2 and 3 As shown, a pilot valve 1 provided in this embodiment includes a conduit 11 , a filter 13 , an end cap 12 and a capillary d.

[0024] The filter 13 includes a cap-shaped filter net. One end of the capillary d has a filter accommodation part d1, and the filter 13 is clamped in the filter accommodation part d1. The diameter of the filter accommodation part d1 is larger than the diameter of the main pipeline of the capillary .

[0025] The end cap 12 has a flange 123 facing the outside of the conduit 11. The flange of the end cap 12 is fixedly connected to the inner wall of one end of the conduit 11. The end cap 12 has a support portion 121 for blocking the filter 13, and the filter accommodating portion d1 cooperates with the supporting part 121, a...

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Abstract

The invention provides a pilot valve and a four-way valve. The pilot valve comprises a guide tube, a filter, an end cover and a capillary tube; the filter comprises a cap-shaped filter screen, one end of the capillary tube is provided with a filter containing portion in which the filter is contained, and the diameter of the filter containing portion is larger than that of a body of the capillary tube; the edge of the end cover is fixedly connected with one end of the guide tube, the end cover is provided with a supporting portion used for retaining the filter, and the filter containing portion is matched with the supporting portion which is provided with an overflowing hole enabling refrigerant to pass through. Since one end of the capillary tube is provided with the filter containing portion in which the filter is contained, the end cover is provided with the supporting portion used for retaining the filter, and the filter containing portion is matched with the supporting portion, connection strength of the filter and the end cover can be improved; the filter is small in size, so that production cost can be reduced.

Description

technical field [0001] The invention relates to refrigeration technology, in particular to a pilot valve and a four-way valve. Background technique [0002] As an important component of the air conditioning system, the electromagnetic four-way reversing valve (hereinafter referred to as the four-way valve) is mainly used to switch the flow direction of the refrigerant in the air conditioning system and realize the switching between cooling and heating modes of the air conditioning system. [0003] figure 1 Schematic diagram of the existing four-way valve and air conditioning system, such as figure 1 As shown, the existing air conditioning system is a refrigeration cycle system composed of a compressor 4, a condenser 5, a throttle valve 6, an evaporator 7 and a four-way valve; the flow direction of the refrigerant in the refrigeration cycle system is switched through the four-way valve. Among them, the four-way valve includes a pilot valve 1 , a main valve 2 and an electrom...

Claims

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Application Information

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IPC IPC(8): F16K31/06F16K11/065
CPCB01D29/035B01D35/04B01D2201/0415B01D2201/60F16K11/0655F16K31/0603
Inventor 王定军
Owner ANHUI HUAHAI METAL
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